CN1295055C - Thermal-melting welding flux igniting material and its constructred heat generation melt welding flux - Google Patents
Thermal-melting welding flux igniting material and its constructred heat generation melt welding flux Download PDFInfo
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- CN1295055C CN1295055C CNB200410021807XA CN200410021807A CN1295055C CN 1295055 C CN1295055 C CN 1295055C CN B200410021807X A CNB200410021807X A CN B200410021807XA CN 200410021807 A CN200410021807 A CN 200410021807A CN 1295055 C CN1295055 C CN 1295055C
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Abstract
The present invention provides a thermo-melting solder, a detonator and heat discharge fusion solder composed of the thermo-melting solder and the detonator for the solder of copper wires, members and between the copper wires and the members by a thermo-melting soldering method. The present invention mainly adopts the following technical measures: the thermo-melting solder contains a small amount of zinc and tin and excess metal aluminum, wherein copper alloy is formed on a soldering point by the zinc and tin; a surface oxide on the soldering point is removed by the excess metal aluminum; the detonator adopts potassium permanganate to replace potassium bichromate or potassium chlorate. Correspondingly to the prior art, the present invention mainly has the characteristic of high safety and has no explosion due to impacts and vibration and no detonation in the process of a soldering chemical reaction. The soldered soldering point is made of the copper alloy. The present invention has the advantages of high mechanical strength, strong oxidation resistance, simple soldering technology and convenient operation.
Description
One, technical field
The welding material that the present invention relates to use in metal solder more particularly, the present invention relates to the hot melt welding flux that metal is welded employed hot melt scolder, detonator and is made of hot melt scolder and detonator with elevated temperature heat flux welding.
Two, background technology
Being the channel of communication of lead, between the lead in the wire signal transmission engineerings such as the lightning protection engineering of open-air building and structures, between the hardware and between lead and the member a large amount of pads that is connected is arranged with railroad rails or long-distance transport pipeline.Traditional welding method is to adopt arc welding or gas welding.But because these connect that pads have a very wide distribution and in the open air, the restriction that carried by the transportation of power supply and welding equipment, construction has inconvenience more, be difficult to satisfied conveniently, construction requirement efficiently.People introduced the welding in above-mentioned field with elevated temperature heat flux welding afterwards, overcome the some shortcomings that traditional welding method exists, obtained reasonable welding effect, promptly not only welding operation is convenient and swift, welding quality also is significantly improved, and has therefore at home and abroad obtained adopting widely.Elevated temperature heat flux welding is the high temperature heat motlten metal that utilizes redox chemistry reaction to produce, and makes that (or between lead or between the member) fusion is welded to each other together between copper conductor and the member.The welding system that the detonator that the key problem in technology of this welding method and welding quality depend primarily on the hot melt scolder, use with its proportioning and their constitute.Publication number is a kind of scheme that the Chinese invention patent application of CN1069215A discloses this class system.This scheme is with cupric oxide (CuO), metallic aluminium (Al), metallic copper (Cu), calcirm-fluoride (CaF
2), silico-calcium powder such as (CaSi) is the hot melt scolder, detonator is with magnesium (Mg), potassium bichromate (K
2Cr
2O
7) or potassium chlorate (KClO
3), copper (Cu), red phosphorus powder such as (P) is raw material components, and is bonded to graininess with the organic matter guncotton, the hot melt scolder is 10～20: 1 with the ratio of detonator.Such scheme has disclosed a feasible sweat soldering system.But this scheme exists tangible deficiency.One, because potassium bichromate or potassium chlorate as the detonator key component have quick-fried quick property, detonator needs special firing device when igniting, therefore welding operation is convenient not enough, and in its transportation stores, add fully carefully, operate the careless slightly danger that breaking out of fire and blast are just arranged, poor stability.Its two, pad intensity and chemical stability that welding back forms are not enough very high, in order to improve its erosion-resisting ability, also must apply special protective paint.
Three, summary of the invention
Purpose of the present invention is intended to be provided at simultaneously the heat-release melting welding compound that welds employed hot melt scolder, detonator and be made of hot melt scolder and detonator with elevated temperature heat flux welding in the wire signal transfer wire, to overcome the existing in prior technology poor stability, to use intensity and the high not enough defective of chemical stability convenient not enough, pad.
Hot melt scolder provided by the invention, the constituting of its raw material weight component:
Surface oxidation copper powders may 50～60%
Metallic copper powder 20～30%
Metallic aluminium powder 10～20%
Fluorite powder 5.0～6.5%
Zinc is or/and tin powder 1.0～4.0%
Preferably by the following technical solutions:
Surface oxidation copper powders may 50～60%
Metallic copper powder 20～30%
Metallic aluminium powder 10～20%
Fluorite powder 5.0～6.5%
Zinc powder 0.5～2.0%
Tin powder 1.0～2.5%
Hot melt agent welding ratio juris is the high temperature that heat energy that the redox reaction between applied metal aluminium and the cupric oxide is emitted produces, and makes the metal partial melting realize welding.Cupric oxide and metallic aluminium are the requisite components of the present invention.The present invention selects for use copper oxide surface as reductive copper oxide, when high temperature reduction, after its inner unoxidized metallic copper melted by heating volumetric expansion, can impel the renewal chemical reaction of powder particle surface to accelerate, can produce the required high temperature of welding in a short period of time, finish welding process.The inner unoxidized metallic copper of copper oxide surface is not only the required interpolation material of welding, and the adjusting to temperature simultaneously also plays an important role.Therefore copper oxide surface shared proportion in the hot melt scolder is bigger, can reach 50～60%.Preferably selecting oxidizability for use is 55～70%, and powder size is 60～200 purpose cupric oxide.Metallic copper mainly is the deficiency that is used to remedy the metallic copper that copper oxide surface provides.The content of metallic copper exceeds with the deficiency that remedies copper oxide surface, and its weight content generally can be controlled in 20～30%.Metallic copper preferably selects for use purity to be not less than 99%, and powder size is not more than 60 purpose metallic coppers.Metallic aluminium is as the reducing agent of redox reaction, and its content is finished the redox reaction except satisfying with cupric oxide, also should have certain can be used for to remove the surplus of pad place oxide on surface, and this also is one of inventive point of the present invention.The content of metallic aluminium can be controlled in 10～20%.The powder size of metallic aluminium preferably is not more than 100 orders, so that redox reaction is carried out fast.Fluorite (CaF
2) in the fusion weld process, mainly play the effect that thing phase bubble is eliminated in the slag making of fluxing, make the pad metallographic of formation more even, welding quality is higher.The content of fluorite is advisable with impurity and the bubble that can effectively eliminate in the pad molten mass, and generally its weight content is 5.0～6.5%.The granularity of fluorite powder generally is not more than 150 orders.The inventor finds in research process, adds a spot of zinc and tin in the hot melt scolder, perhaps only adds the increase of copper alloy weld joint strength, stable chemical performance that copper alloy elements such as zinc or tin can make formation, helps the raising of solder joint antioxidant capacity.Preferred scheme is to add zinc and ashbury metal element simultaneously.This is that the present invention is different from one of main inventive point of prior art.Zinc and tin can oxides, the form of metal or mixture adds.Top-priority scheme is the form adding of zinc with zinc oxide (ZnO), and tin adds with the form of metallic tin.When zinc and tin add fashionablely simultaneously, both content can be controlled in 2.0～4.0%; When adding separately wherein a kind of, content can be controlled in 1.0～2.5%.When the form with metal adds fashionablely, content will hang down, and when the form with oxide adds fashionablely, content is suitably higher.The granularity of zinc and tin should be greater than 100 orders.
Chemical reaction can not take place in the hot melt scolder accumulating at normal temperatures operation that the present invention discloses, and just can carry out chemical reaction after must being ignited by detonator when welding with it.Detonator is the requisite material of thermofussion welding connection.Detonator components by weight percent provided by the invention is composed as follows:
Metallic copper powder 25～40%
Surface oxidation copper powders may 20～40%
Metallic aluminium powder 15～25%
Potassium permanganate powder 5.0～10%
Red phosphorus powder 5.0～10%
The copper purity of the metallic copper in the such scheme is not less than 99%, and the granularity of powder can be 60～200 orders.The oxidizability of copper oxide surface is 55～70%, and the granularity of powder can be 60～200 orders.The powder size of metallic aluminium is not more than 100 orders.The powder size of red phosphorus (P) is not more than 100 orders.Facts have proved, as the potassium permanganate (KMnO of oxidant
4) more than potassium bichromate (KnCr
2O
7) or potassium chlorate (KClO
3) chemical stability good, can because of in the processes such as its accumulating operation the collision or vibrations blast.This is because potassium permanganate can only just can decomposite oxygen more than 200 ℃, the ignition point of the point of release of oxygen and red phosphorus (P) is synchronous, when detonator when igniting, potassium permanganate decomposes the oxygen addition polymerization red phosphorus burning that discharges, and then promote metallic aluminium and copper oxide surface that stable redox reaction takes place, therefore can eliminate because the blast trouble and worry that careless manipulation causes.Replacing potassium bichromate or potassium chlorate in the prior art with potassium permanganate also is one of main inventive point of the present invention.
Hot melt scolder and detonator are that proportioning is used, and both have constituted the heat-release melting welding compound of thermofussion welding connection jointly.In the heat-release melting welding compound, the weight ratio of hot melt scolder and detonator is controlled at 56～63: 1 scope.
The welding compound that the present invention discloses can be widely used in railroad rails, long-distance transport pipeline be the channel of communication of lead, open-air building with the wire signal transmission lines such as lightning protection engineering of structures in copper conductor or non-copper conductor between, be connected welding between the member or between lead and the member.Welding system of the present invention in the specific implementation, below the hot melt scolder that proportioning is good is seated in the welding die cavity, detonator be seated in the hot melt scolder above, ignite after the detonator with burning torch, the high temperature that exothermic heat of reaction produces makes scolder be melt into copper alloy at weld, and only needs can cool off within several seconds, finishes welding process, realize the purpose of its welding, welding operation is very fast and simple.
The present invention compared with prior art has following relatively more outstanding advantage and good effect:
Detonation owing to do not contain the potassium bichromate or the potassium chlorate of explosive component, therefore can not take place in 1, the welding compound that is made of hot melt scolder and detonator provided by the invention in storage, transportation and chemical reaction process, security is good.
2, owing to contain elemental constituent zinc, the tin that forms copper alloy in the hot melt scolder of the present invention, what pad formed is copper alloy, and its mechanical strength and chemical stability all improve a lot than prior art, and resistance to corrosion is strong, long service life, the suitable environment scope is wide.
3, because contained reducing agent composition metallic aluminium (Al) in the welding system, except can satisfy and the redox reaction of cupric oxide, the oxide when also having enough amounts to be used in pyroreaction on the removing pad place surface of the work.Therefore, surface of the work need not specially treated before the weldering, has saved the time of before the weldering surface of the work being carried out cleaning, has simplified welding procedure.
4, igniting of detonator need not special igniter, uses the calcium carbide lighter to ignite, and welding operation is convenient and swift.
5, because pad forms is chemically stable Jackson's alloy, oxidation resistance is strong, need not special preservative treatment after the welding again, only needs to do conventional japanning and get final product, has simplified the treatment process after welding greatly.
The present invention also has more otherwise advantages and effect.
Four, the specific embodiment
Component among each embodiment all is weight percentage below, and the component parts number average is parts by weight.
Embodiment 1
The preparation raw material components of hot melt scolder constitutes:
Oxidizability is 58%, granularity is 100 purpose copper oxide surface (CuO) powder 50%
The copper dullness is 99%, granularity is 60 purpose metallic copper (Cu) powder 30%
Granularity is 100 purpose metallic aluminium (Al) powder 14%
Granularity is 150 purpose fluorite (CaF
2) powder 5.0%
Granularity is 100 purpose zinc oxide (ZnO) powder 1.0%
The preparation raw material components of detonator constitutes:
The copper dullness is 99%, granularity is 60 purpose metallic copper (Cu) powder 40%
Oxidizability is 70%, granularity is 100 purpose copper oxide surface (CuO) powder 25%
Granularity is 100 purpose metallic aluminium (Al) powder 20%
Granularity is 100 purpose potassium permanganate (KMnO
4) powder 8.0%
Granularity is 100 purpose red phosphorus (P) powder 7.0%
In the heat-release melting welding compound that is made of above-mentioned hot melt scolder and detonator, the portion rate of hot melt scolder and detonator is 58: 1.
Embodiment 2
The preparation raw material components of hot melt scolder constitutes:
Oxidizability is 63%, granularity is 200 purpose copper oxide surface (CuO) powder 60%
The copper dullness is 99%, granularity is 60 purpose metallic coppers (Cu) end 30%
Granularity is 100 purpose metallic aluminium (Al) powder 12.5%
Granularity is 150 purpose fluorite (CaF
2) powder 6.5%
Granularity is 100 purpose tin oxide (SnO) powder 1.0%
The preparation raw material components of detonator constitutes:
The copper dullness is 99%, granularity is 60 purpose metallic copper (Cu) powder 30%
Oxidizability is 55%, granularity is 100 purpose copper oxide surface (CuO) powder 40%
Granularity is 100 purpose metallic aluminium (Al) powder 15%
Granularity is 100 purpose potassium permanganate (KMnO
4) powder 10%
Granularity is 100 purpose red phosphorus (P) powder 5.0%
In the heat-release melting welding compound that is made of above-mentioned hot melt scolder and detonator, the portion rate of hot melt scolder and detonator is 61: 1.
Embodiment 3
The preparation raw material components of hot melt scolder constitutes:
Oxidizability is 70%, granularity is 100 purpose copper oxide surface (CuO) powder 59%
The copper dullness is 99%, granularity is 60 purpose metallic copper (Cu) powder 30%
Granularity is 100 purpose metallic aluminium (Al) powder 12%
Granularity is 150 purpose fluorite (CaF
2) powder 5.5%
Granularity is 100 purpose zinc oxide (ZnO) powder 2.0%
Granularity is 100 tin oxide (SnO) powder 1.5%
The preparation raw material components of detonator constitutes:
The copper dullness is 99%, granularity is 60 purpose metallic copper (Cu) powder 25%
Oxidizability is 60%, granularity is 100 purpose copper oxide surface (CuO) powder 37%
Granularity is 100 purpose metallic aluminium (Al) powder 18%
Granularity is 100 purpose potassium permanganate (KMnO
4) powder 10%
Granularity is 100 purpose red phosphorus (P) powder 10%
In the heat-release melting welding compound that is made of above-mentioned hot melt scolder and detonator, the portion rate of hot melt scolder and detonator is 65: 1.
Embodiment 4
The preparation raw material components of hot melt scolder constitutes:
Oxidizability is 65%, granularity is 100 purpose copper oxide surface (CuO) powder 50%
The copper dullness is 99%, granularity is 60 purpose metallic copper (Cu) powder 20%
Granularity is 100 purpose metallic aluminium (Al) powder 20%
Granularity is 150 purpose fluorite (CaF
2) powder 6.0%
Granularity is 100 purpose zinc oxide (ZnO) powder 2.0%
Granularity is 100 purpose tin oxide (SnO) powder 2.0%
The preparation raw material components of detonator constitutes:
The copper dullness is 99%, granularity is 60 purpose metallic copper (Cu) powder 40%
Oxidizability is 65%, granularity is 100 purpose copper oxide surface (CuO) powder 20%
Granularity is 100 purpose metallic aluminium (Al) powder 20%
Granularity is 100 purpose potassium permanganate (KMnO
4) powder 10%
Granularity is 100 purpose red phosphorus (P) powder 10%
In the heat-release melting welding compound that is made of above-mentioned hot melt scolder and detonator, the portion rate of hot melt scolder and detonator is 60: 1.
Claims (7)
1, a kind of hot melt scolder is characterized in that the constituting of preparation raw material weight component of hot melt scolder:
(1) the surface oxidation copper powders may 50～60%
(2) the metallic copper powder 20～30%
(3) the metallic aluminium powder 10～20%
(4) the fluorite powder 5.0～6.5%
(5) zinc is or/and tin powder 1.0～4.0%.
2, hot melt scolder as claimed in claim 1 is characterized in that the constituting of preparation raw material weight component of hot melt scolder:
(1) the surface oxidation copper powders may 50～60%
(2) the metallic copper powder 20～30%
(3) the metallic aluminium powder 10～20%
(4) the fluorite powder 5.0～6.5%
(5) zinc powder 0.5～2.0%
(6) tin powder 1.0～2.5%.
3, hot melt scolder as claimed in claim 1 or 2, the oxidizability that it is characterized in that said copper oxide surface is 55～70%.
4, hot melt scolder as claimed in claim 1 or 2 is characterized in that the copper purity of said metallic copper is not less than 99%.
5, hot melt scolder as claimed in claim 1 or 2 is characterized in that said zinc is selected from zinc oxide and metallic zinc, and said tin is selected from tin oxide and metallic tin.
6, hot melt scolder as claimed in claim 5 is characterized in that said zinc is zinc oxide, and said tin is metallic tin.
7, the heat-release melting welding compound that constitutes by the described hot melt scolder of each claim in the claim 1 to 6, it is characterized in that constituting by hot melt scolder and detonator, the weight ratio of hot melt scolder and detonator is 58～65: 1, and the components by weight percent of described detonator consists of:
Metallic copper powder 25～40%
Surface oxidation copper powders may 20～40%
Metallic aluminium powder 15～25%
Potassium permanganate powder 5.0～10%
Red phosphorus powder 5.0-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410021807XA CN1295055C (en) | 2004-02-13 | 2004-02-13 | Thermal-melting welding flux igniting material and its constructred heat generation melt welding flux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410021807XA CN1295055C (en) | 2004-02-13 | 2004-02-13 | Thermal-melting welding flux igniting material and its constructred heat generation melt welding flux |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610070810XA Division CN100443243C (en) | 2004-02-13 | 2004-02-13 | Thermofusion solder detonator and heat-release melting solder comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1559745A CN1559745A (en) | 2005-01-05 |
| CN1295055C true CN1295055C (en) | 2007-01-17 |
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ID=34440858
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410021807XA Expired - Fee Related CN1295055C (en) | 2004-02-13 | 2004-02-13 | Thermal-melting welding flux igniting material and its constructred heat generation melt welding flux |
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| Country | Link |
|---|---|
| CN (1) | CN1295055C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101412167B (en) * | 2008-11-28 | 2011-01-26 | 中国电力科学研究院 | Thermofusion welding agent for welding copper covered steel grounded screen |
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| CN102079012B (en) * | 2010-12-07 | 2013-01-09 | 武汉大学 | Method for preparing aluminum-steel connecting block |
| CN102267024B (en) * | 2011-07-06 | 2013-06-26 | 哈尔滨工业大学 | Solder for exothermic welding of grounding body in grounding system and ignition agent of solder |
| CN103433646B (en) * | 2013-09-06 | 2016-02-03 | 云南宇恬防雷材料有限公司 | A kind of new-type heat-melting welding material and preparation method thereof |
| CN104551445B (en) * | 2014-11-18 | 2016-06-01 | 昆山斯格威电子科技有限公司 | The block exothermic welding flux that a kind of high safety is easily ignited and briquetting technique thereof |
| CN105382444B (en) * | 2015-12-23 | 2018-02-02 | 庆云昊天焊材科技有限公司 | A kind of flux-cored wire for increasing fusion penetration and preparation method and application |
| CN109014651A (en) * | 2018-07-16 | 2018-12-18 | 湖南机电职业技术学院 | A kind of sweat soldering material |
| CN110919233B (en) * | 2019-11-15 | 2021-06-04 | 东莞市输变电工程公司 | Welding flux, preparation method thereof and ignition agent |
| CN111843294B (en) * | 2019-11-18 | 2022-03-01 | 国网河南省电力公司电力科学研究院 | Stainless steel ladle steel grounding grid welding powder suitable for dry-wet alternative environment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4171232A (en) * | 1973-12-20 | 1979-10-16 | Th. Goldschmidt Ag | Aluminothermic reaction mixture based on cupric oxide |
| CN1011674B (en) * | 1988-05-26 | 1991-02-20 | 昆明冶金机械厂 | Aluminithermic weld of cables |
| CN1069215A (en) * | 1991-08-03 | 1993-02-24 | 上海宝山钢铁总厂 | A kind ofly be used for solder flux and the detonator that copper connects the thermit welding that connects line |
| US20020127135A1 (en) * | 2000-03-10 | 2002-09-12 | Nobuaki Ohara | Method for brazing aluminum alloy-assembled articles within a short period of time and a filler alloy usable at low temperature |
| CN1371781A (en) * | 2001-02-28 | 2002-10-02 | 石含华 | Heat releasing welding flux |
-
2004
- 2004-02-13 CN CNB200410021807XA patent/CN1295055C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4171232A (en) * | 1973-12-20 | 1979-10-16 | Th. Goldschmidt Ag | Aluminothermic reaction mixture based on cupric oxide |
| CN1011674B (en) * | 1988-05-26 | 1991-02-20 | 昆明冶金机械厂 | Aluminithermic weld of cables |
| CN1069215A (en) * | 1991-08-03 | 1993-02-24 | 上海宝山钢铁总厂 | A kind ofly be used for solder flux and the detonator that copper connects the thermit welding that connects line |
| US20020127135A1 (en) * | 2000-03-10 | 2002-09-12 | Nobuaki Ohara | Method for brazing aluminum alloy-assembled articles within a short period of time and a filler alloy usable at low temperature |
| CN1371781A (en) * | 2001-02-28 | 2002-10-02 | 石含华 | Heat releasing welding flux |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101412167B (en) * | 2008-11-28 | 2011-01-26 | 中国电力科学研究院 | Thermofusion welding agent for welding copper covered steel grounded screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1559745A (en) | 2005-01-05 |
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